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 <mx:ColumnSeries showDataEffect="slideIn" hideDataEffect="slideOut" xField="label" yField="value" itemRenderer="drawhelper.histogramSkin" />

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package drawhelper
{
import flash.geom.Point;

import mx.charts.series.items.ColumnSeriesItem;
import mx.core.IDataRenderer;
import mx.skins.ProgrammaticSkin;


public class solidSkin extends ProgrammaticSkin implements IDataRenderer
{
private var colors:Array = [0x60cb00,0x6a7a88,0x3698ff,0x66a800,0xff6600,0x655fc8,0xd2691e];
private var _chartItem:ColumnSeriesItem;

public function solidSkin()
{
super();
}
public function get data():Object
{
return Object(_chartItem);
}
public function set data(value:Object):void
{
_chartItem = value as ColumnSeriesItem;
invalidateDisplayList();
}
override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth,unscaledHeight);
this.graphics.clear();
var points:Array = getPoints